As an outsider not paying too much attention, how do you beat the ledger problem? Crypto only works if there is a ledger. I don't want a ledger of every transaction I made. Seems like an insurmountable fundamental privacy issue.
Re: privacy though, there's many solutions. Single tailored chains for privacy, mixers, encrypted tokens, permissioned chains, etc.
In my experience, privacy, while important, is not something users actually care about enough to demand a solution for. Most web3 users today just want to degen and gamble, and they're okay with KYC to do so.